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Finding the Fourth Proportional to 564.39, 848.12 and 290.69

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Solution

The fourth proportional to 564.39, 848.12 and 290.69 is: 436.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.39 : 848.12 = 290.69 : x
  2. Step 2: Convert to fraction form
    564.39/848.12 = 290.69/x
  3. Step 3: Cross multiply
    564.39x = 848.12 × 290.69
  4. Step 4: Simplify right side
    564.39x = 246,539.12
  5. Step 5: Solve for x
    x = 246,539.12/564.39
  6. Step 6: Final answer
    x = 436.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.